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Medium 5.3Published Apr 3, 2026
CVE-2026-35536In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked for crafted characters.
Updated under an hour ago ()
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It affects tornadoweb tornado. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked for crafted characters.
- CVSS
- 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-159
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
tornadoweb tornado tornadoweb:tornado | before 6.5.5 | NVD |
References
- https://github.com/tornadoweb/tornado/releases/tag/v6.5.5product
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-78cv-mqj4-43f7vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.